Yes, playing speakers will heat up a space. There is first the electrical energy lost in the voice coil to heat, and any sound that doesn't escape the house will bounce around on the walls and furniture vibrating them, and causing the mechanical energy to also turn to heat.

Yeah, Michael; typical speakers are a bit less than 1% efficient at turning electrical energy into acoustical energy. For example, at the usual 1 meter measuring distance an acoustic watt would be at about at a 112dB level. If instead the speaker put out only 102dB(a tenth of an acoustic watt)for 1 watt of electrical power input, that would represent an efficiency of about 10%; if 92dB, about 1%. The rest is primarily lost as heat, as Chris pointed out.

So, on some of those scorchers in Kuala Lumpur you can turn down the volume(or turn up the air conditioning). Incidentally, I was just listening to an excellent Rimsky-Korsakov collection by your home-town band, the Malaysian Philharmonic. Do you have any of their recordings?

Dey is in da house!!!!!!!!! and happily playing The Who's Tommy, disc one.hehehehehee.....for the moment, I am totally grinning at the detail I'm catching. Strings (as in acoustic guitar) sound great as well as Roger's vocals and even though I have to have them kind of close together, the imaging is great. Will have more to add later, but for now I'm in LURV!!!!!!!!!!!!!Many thanks, too, to the person I spoke to at Axiom earlier, who helped me out with my shipping info.

lol!!!!!! maybe it's just because I can suddenly HEAR the differentiation in the instruments.And being that these speakers MAKE bass, without a need for sub, the bass guitar doesn't feel disembodied, or vague. I have NEVER heard this recording like this.

thanks! got to wait til Thurs. for that. These speakers are so good, they make me want to be a better person!For Jerry Garcia's birthday am giving "Candy Man" a whirl and then it's off to dreamland. Sounds so beautiful. It lets me get "into" the music, rather than worrying about it.

Before I'd been worried that I would have to be too near them, due to small room - but not so, this sounds just fine. The lack of mud is just remarkable.